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require 'tmpdir'
module ActionMailer
# This module handles everything related to mail delivery, from registering
# new delivery methods to configuring the mail object to be sent.
module DeliveryMethods
extend ActiveSupport::Concern
included do
class_attribute :delivery_methods, :delivery_method
# Do not make this inheritable, because we always want it to propagate
cattr_accessor :raise_delivery_errors
self.raise_delivery_errors = true
cattr_accessor :perform_deliveries
self.perform_deliveries = true
cattr_accessor :deliver_later_queue_name
self.deliver_later_queue_name = :mailers
self.delivery_methods = {}.freeze
self.delivery_method = :smtp
add_delivery_method :smtp, Mail::SMTP,
address: "localhost",
port: 25,
domain: 'localhost.localdomain',
user_name: nil,
password: nil,
authentication: nil,
enable_starttls_auto: true
add_delivery_method :file, Mail::FileDelivery,
location: defined?(Rails.root) ? "#{Rails.root}/tmp/mails" : "#{Dir.tmpdir}/mails"
add_delivery_method :sendmail, Mail::Sendmail,
location: '/usr/sbin/sendmail',
arguments: '-i -t'
add_delivery_method :test, Mail::TestMailer
end
# Helpers for creating and wrapping delivery behavior, used by DeliveryMethods.
module ClassMethods
# Provides a list of emails that have been delivered by Mail::TestMailer
delegate :deliveries, :deliveries=, to: Mail::TestMailer
# Adds a new delivery method through the given class using the given
# symbol as alias and the default options supplied.
#
# add_delivery_method :sendmail, Mail::Sendmail,
# location: '/usr/sbin/sendmail',
# arguments: '-i -t'
def add_delivery_method(symbol, klass, default_options={})
class_attribute(:"#{symbol}_settings") unless respond_to?(:"#{symbol}_settings")
send(:"#{symbol}_settings=", default_options)
self.delivery_methods = delivery_methods.merge(symbol.to_sym => klass).freeze
end
def wrap_delivery_behavior(mail, method=nil, options=nil) # :nodoc:
method ||= self.delivery_method
mail.delivery_handler = self
case method
when NilClass
raise "Delivery method cannot be nil"
when Symbol
if klass = delivery_methods[method]
mail.delivery_method(klass, (send(:"#{method}_settings") || {}).merge(options || {}))
else
raise "Invalid delivery method #{method.inspect}"
end
else
mail.delivery_method(method)
end
mail.perform_deliveries = perform_deliveries
mail.raise_delivery_errors = raise_delivery_errors
end
end
def wrap_delivery_behavior!(*args) # :nodoc:
self.class.wrap_delivery_behavior(message, *args)
end
end
end
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